US4361319A - Bin for receiving sheets - Google Patents

Bin for receiving sheets Download PDF

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Publication number
US4361319A
US4361319A US06/188,723 US18872380A US4361319A US 4361319 A US4361319 A US 4361319A US 18872380 A US18872380 A US 18872380A US 4361319 A US4361319 A US 4361319A
Authority
US
United States
Prior art keywords
sheet
inclined plate
rear end
sheets
bin
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US06/188,723
Other languages
English (en)
Inventor
Sunao Ikeda
Tamaki Kaneko
Kunio Hibi
Tugio Okuzawa
Yohtaro Kakitani
Hideo Kikuchi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ricoh Co Ltd
Original Assignee
Ricoh Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ricoh Co Ltd filed Critical Ricoh Co Ltd
Assigned to RICOH CO., LTD. reassignment RICOH CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: HIBI KUNIO, IKEDA SUNAO, KAKITANI YOHTARO, KANEKO TAMAKI, KIKUCHI HIDEO, OKUZAWA TUGIO
Application granted granted Critical
Publication of US4361319A publication Critical patent/US4361319A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H39/00—Associating, collating, or gathering articles or webs
    • B65H39/10—Associating articles from a single source, to form, e.g. a writing-pad
    • B65H39/11—Associating articles from a single source, to form, e.g. a writing-pad in superposed carriers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2405/00—Parts for holding the handled material
    • B65H2405/10—Cassettes, holders, bins, decks, trays, supports or magazines for sheets stacked substantially horizontally
    • B65H2405/11—Parts and details thereof
    • B65H2405/111—Bottom
    • B65H2405/1111—Bottom with several surface portions forming an angle relatively to each other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2408/00—Specific machines
    • B65H2408/10—Specific machines for handling sheet(s)
    • B65H2408/11—Sorters or machines for sorting articles
    • B65H2408/112—Sorters or machines for sorting articles with stationary location in space of the bins and in-feed member movable from bin to bin

Definitions

  • This invention relates to an improvement for a bin which is arranged in an apparatus such as a collator which has a number of bins for receiving collated or sorted sheets.
  • the sheet fed from a printing machine or a copying machine to the collator and so on usually has a curling.
  • a copy sheet such as PPC paper used for the copying machine is curled by passing through a fixing station.
  • the curling of the copy sheet arises in many cases at corners thereof and then arises at a front edge and a rear edge thereof.
  • the bottom plate of the bin is formed in a concave shape with a larger curvature than that of the curling of the sheets.
  • This bin is available for receiving a large-sized sheet, but it is not available for receiving a small-sized sheet because the receiving of the sheet of small size results in the same condition as in the former case. Therefore a good stack condition of the sheet cannot be obtained.
  • the curvature of the bottom plate is large, a large space is further required for the bin.
  • the object of the present invention is to provide a bin, in which the front edges of the stacked sheets can be aligned independently of the size of the sheets, and also the sheets having a curl can be received while being aligned at front edges thereof.
  • the object of the present invention is further to provide a bin capable of receiving a great many sheets (more than 100 pieces).
  • FIG. 1 is a schama explaining a main part of the apparatus having a bin
  • FIG. 2 is a perspective view of the bin of the present invention.
  • FIG. 3 is an explaining view of the receiving state of the sheet.
  • a sheet such as a copy sheet is fed from the copying machine and so on to an apparatus for collating or sorting, and it is laterally fed in the apparatus by the known means for arranging the side edge in predetermined position. Then the sheet is fed by an intermediate roller device having a driving roller 1 and a press roller 2 and guided through guide plates 3 and 4 to a deflecting device 5.
  • the deflecting device includes separating pawl 8 being moved up- and downwardly by a belt 8 which is stretched around belt wheels 6 and a discharging roller 10 for discharging a sheet deflected by the separating pawl 8 into a suitable bin selected from the bins 9 which are arranged with a suitable interval in the vertical direction.
  • the discharging roller 10 is moved up and down together with the separating pawl 8 and it is provided with a press roller 11 for pressing the sheet to the discharging roller 10.
  • the sheet can be desirably stacked in the bin.
  • Each bin has a front end part 12 which is positioned higher than a level of the sheet when it is discharged in a substantially horizontal direction, from the discharging roller 10 in corresponding position, a rear end part 13 being positioned lower than the said level and an intermediate inclination part 14 connecting the front end part 12 to the rear end part 13 as shown in FIG. 2.
  • the front end part 12 includes a straight guide portion 15 and a vertical wall 16 providing an attaching plane for mounting.
  • a stopper 17 for stopping the sheet is attached on the straight guide portion 15 .
  • the front end of the sheet fed from the discharging roller 10 runs against the stopper 17 and stops. It is preferable, for stopping sheets of every size that are received in the bin without skewing, to dispose at least two stoppers 17 at a suitable distance. Instead of the two stoppers only one stopper having an available length can be used.
  • the rear end portion 13 has an upright plane 18 used to align the rear edges of the sheets received in the bin 9 and an inclined plate 19 being slightly inclined so as to extend downwardly in the forward direction or away from the discharging roller 10.
  • the inclined plate 19 can be provided with a flat surface or a concave surface.
  • the inclined plate 19 is provided on both sides thereof with a lug 21 having a hole 20 used for mounting the bin 9 to a machine frame.
  • the lug 21 can be formed on both sides of the intermediate inclination part 14 instead of the inclined plate 19.
  • stoppers 26 At side ends of the intermediate inclination part 14 is formed stoppers 26 for preventing a deviation of the sheets.
  • the straight guide portion 15 of the front end part 12 is connected with the intermediate inclination part 14 smoothly through a front curved portion 22 with a radius R 2 .
  • the inclined plane 19 of the rear end part 13 is connected with the intermediate inclination part 14, smoothly through a rear curved portion 23 with a radius R 1 .
  • the inclined plane 19 has an inclination angle to a horizontal plane designated with ⁇ .
  • the intermediate inclination part 14 has an inclination angle to the horizontal plane designated with ⁇ .
  • T a height from a lowest point of the rear curve portion 23 forming a transfer portion between the rear end portion 13 and the intermediate inclination part 14 to the straight guide portion 15 is designated with T.
  • a height from a lowest position of the rear curve portion 23 to the discharging level of the discharging roller 10 is designated with l.
  • a height from a highest position of the inclined plane 19, or a connecting position between the upright plane 18 and the inclined plane 19 to a sheet discharging level of the discharging roller 10 is designated with l 1 .
  • the sheet is fed from the discharging roller 10 in a state A shown in FIG. 3, then it ascends through the intermediate inclination part 14 and stops by contacting with the stopper 17 in a state A 2 .
  • the sheet falls by its own weight along the guide surface of the intermediate inclination part 14 after stopping.
  • the inclination angle ⁇ of the intermediate inclination part 14 is so selected that the weight of the sheet overcomes a friction and the sheet can slide down.
  • the rear end of the sheet ascends along the inclined plane 19 some distance after sliding down and stops by contacting the upright plane 18 in a state A 3 in FIG. 3.
  • the sheet received in the state A 3 may form a space ⁇ 1 between the rear end thereof and the surface of the inclined plate 19 or the sheet received previously because of the curling of the sheet.
  • the extent of the curling of the sheet is reduced by a falling of the temperature of the sheet from the temperature on the fixing station, so that the space ⁇ 1 can be reduced to zero and the sheet can be stacked tightly on the preceding sheet.
  • the sheet with a slight curl can hold the space ⁇ 1 to zero, so that more than 100 sheets can be brought at their rear end to contact with the upright 18. Therefore they can be stacked tightly with each other.
  • a limit of sheets in a preferable stack was in the range between 20 to 50 pieces. If more than 50 sheets are stacked, the succeeding sheet pushes at its front end against the curled rear end of the preceding sheet and there is a possibility of disturbing of the order of the stacked sheets.
  • each sheet can be preferably aligned in a range 25°-30° of the inclination angle of the intermediate inclination part 14.
  • the height l 1 of the rear end portion 13 is decided on the basis of the number of sheets to be stacked, the degree of curling of the sheets and the thickness of the sheets. By selecting the height to be l 1 in 19-20 mm, 100 pieces can be stacked. For a length in the horizontal direction between the upright 18 of the rear end portion 13 and the stopper 17 of the front end portion 12 it is preferable to select the length of the sheet to be stacked plus about 10 mm. In this case we had good results with sheets of B-4 size.
  • a length S 1 in the horizontal direction of the inclined plane 19 of the rear end portion 13 is selected on the basis of the degree of the curling of the sheets, and in this case the relation to the inclination angle ⁇ is to be considered.
  • the height l and T are decided naturally by selecting the values of l 1 , ⁇ 1 , S 1 , S 2 , S and ⁇ .
  • the sheets can be stacked tightly as shown at A 4 in FIG. 3, but the front end portion of the sheets curled to a high degree, at keep at a distance from the preceding sheet as shown with A 3 .
  • the distance from the preceding sheet is smaller than the height of the stopper 17, there will be no problem.
  • the radius R is preferable for the radius R, to be selected as large as possible.
  • a number of convex ribs 24 are provided for reducing the contact area of the bin with the sheet so as to reduce the friction resistance between the sheet and the bin. Therefore a slippery surface of the bin can be obtained and the preferable stacking of the sheet can be carried out.
  • the convex rib can be formed on the both sides of the plate for reinforcing the bin.
  • the rear end (not a rear end in the printed situation, but in direction of feeding by the discharging roller) of the sheet can be aligned accurately irrespective of the sheet size. And further many sheets more than 100 pieces can be aligned at their one end, namely at the front end or the rear end, and stacked accurately irrespective of the existence of curling. Therefore sheets fed with a speed more than 400 mm/sec. can be stacked accurately.

Landscapes

  • Pile Receivers (AREA)
  • Collation Of Sheets And Webs (AREA)
US06/188,723 1979-09-29 1980-09-19 Bin for receiving sheets Expired - Lifetime US4361319A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1979134811U JPS6228621Y2 (enrdf_load_stackoverflow) 1979-09-29 1979-09-29
JP54-134811[U] 1979-09-29

Publications (1)

Publication Number Publication Date
US4361319A true US4361319A (en) 1982-11-30

Family

ID=15137050

Family Applications (1)

Application Number Title Priority Date Filing Date
US06/188,723 Expired - Lifetime US4361319A (en) 1979-09-29 1980-09-19 Bin for receiving sheets

Country Status (4)

Country Link
US (1) US4361319A (enrdf_load_stackoverflow)
JP (1) JPS6228621Y2 (enrdf_load_stackoverflow)
DE (1) DE3036385C2 (enrdf_load_stackoverflow)
GB (1) GB2059393B (enrdf_load_stackoverflow)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4469319A (en) * 1982-11-22 1984-09-04 Xerox Corporation Large document restacking system
US4664368A (en) * 1985-02-27 1987-05-12 Oce-Nederland B.V. Device for collecting sheets
US4696463A (en) * 1985-03-27 1987-09-29 Ricoh Company, Ltd. Automatic original sheet feeding apparatus
US5115322A (en) * 1989-06-30 1992-05-19 Samsung Electronics Co., Ltd. Guiding mechanism for a facsimile for preventing jam of heat-sensitive recording paper
US5419548A (en) * 1992-05-19 1995-05-30 Riso Kagaku Corporation Sorter
US5454553A (en) * 1993-04-30 1995-10-03 Hewlett-Packard Company Paper trays for computer driven printer
US5593153A (en) * 1995-10-23 1997-01-14 Gradco (Japan) Ltd. Tray configuration for sheet receiving apparatus
US5618034A (en) * 1993-11-05 1997-04-08 Fujitsu Limited Supply/conveyance mechanism for sheets of paper
US6065747A (en) * 1998-02-27 2000-05-23 Hewlett-Packard Company Sheet support tray with compensation for curled sheets
US20050084272A1 (en) * 2003-08-26 2005-04-21 Hideo Kikuchi Image forming apparatus, unit for installation in the image forming apparatus, and administration system monitoring use state of the image forming apparatus
US20090091074A1 (en) * 2007-10-03 2009-04-09 Qisda Corporation Feeder and multifunction printer using the same
US20100096794A1 (en) * 2008-10-17 2010-04-22 Oki Data Corporation Sheet stacking device and image forming device
US20150091236A1 (en) * 2013-09-30 2015-04-02 Brother Kogyo Kabushiki Kaisha Sheet Conveying Device

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4789149A (en) * 1987-06-23 1988-12-06 Ncr Corporation Document guide apparatus for pocketing documents
US4836526A (en) * 1987-09-29 1989-06-06 Xerox Corporation Sheet sorters
DE10023796A1 (de) * 2000-05-15 2001-11-22 Nexpress Solutions Llc Ablagetisch
DE102005016520A1 (de) * 2005-04-08 2006-10-12 Eastman Kodak Company Vorrichtung und Ablagetablett zur Ablage von Bögen für eine Bögen verarbeitende Maschine
JP2012062125A (ja) * 2010-09-14 2012-03-29 Sinfonia Technology Co Ltd 紙葉類処理装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3807726A (en) * 1973-03-08 1974-04-30 H Hope Film receiving apparatus
US3957264A (en) * 1975-08-07 1976-05-18 International Business Machines Corporation Collator bins
US3988018A (en) * 1975-02-25 1976-10-26 Van Dyke Research Corporation Paper sorter

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1307633A (en) * 1969-09-04 1973-02-21 Ricoh Kk Sheet or plate handling and storage arrangements
DE2601616C3 (de) * 1976-01-17 1980-03-20 Mathias Baeuerle Gmbh, 7742 St Georgen Vorrichtung zum Verteilen von Bogen in Sammelfächer

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3807726A (en) * 1973-03-08 1974-04-30 H Hope Film receiving apparatus
US3988018A (en) * 1975-02-25 1976-10-26 Van Dyke Research Corporation Paper sorter
US3957264A (en) * 1975-08-07 1976-05-18 International Business Machines Corporation Collator bins

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4469319A (en) * 1982-11-22 1984-09-04 Xerox Corporation Large document restacking system
US4664368A (en) * 1985-02-27 1987-05-12 Oce-Nederland B.V. Device for collecting sheets
US4696463A (en) * 1985-03-27 1987-09-29 Ricoh Company, Ltd. Automatic original sheet feeding apparatus
US5115322A (en) * 1989-06-30 1992-05-19 Samsung Electronics Co., Ltd. Guiding mechanism for a facsimile for preventing jam of heat-sensitive recording paper
US5419548A (en) * 1992-05-19 1995-05-30 Riso Kagaku Corporation Sorter
US5454553A (en) * 1993-04-30 1995-10-03 Hewlett-Packard Company Paper trays for computer driven printer
US5618034A (en) * 1993-11-05 1997-04-08 Fujitsu Limited Supply/conveyance mechanism for sheets of paper
GB2306452A (en) * 1995-10-23 1997-05-07 Gradco Sheet receiving trays
US5593153A (en) * 1995-10-23 1997-01-14 Gradco (Japan) Ltd. Tray configuration for sheet receiving apparatus
US6065747A (en) * 1998-02-27 2000-05-23 Hewlett-Packard Company Sheet support tray with compensation for curled sheets
US20050084272A1 (en) * 2003-08-26 2005-04-21 Hideo Kikuchi Image forming apparatus, unit for installation in the image forming apparatus, and administration system monitoring use state of the image forming apparatus
US7289741B2 (en) 2003-08-26 2007-10-30 Ricoh Company Ltd. Image forming apparatus, unit for installation in the image forming apparatus, and administration system monitoring use state of the image forming apparatus
US20090091074A1 (en) * 2007-10-03 2009-04-09 Qisda Corporation Feeder and multifunction printer using the same
US20100096794A1 (en) * 2008-10-17 2010-04-22 Oki Data Corporation Sheet stacking device and image forming device
US8016287B2 (en) * 2008-10-17 2011-09-13 Oki Data Corporation Sheet stacking device and image forming device
US8777217B2 (en) 2008-10-17 2014-07-15 Oki Data Corporation Sheet stacking device and image forming device
US20150091236A1 (en) * 2013-09-30 2015-04-02 Brother Kogyo Kabushiki Kaisha Sheet Conveying Device
US9580262B2 (en) * 2013-09-30 2017-02-28 Brother Kogyo Kabushiki Kaisha Sheet conveying device

Also Published As

Publication number Publication date
JPS5651752U (enrdf_load_stackoverflow) 1981-05-08
DE3036385C2 (de) 1984-07-05
GB2059393A (en) 1981-04-23
DE3036385A1 (de) 1981-04-16
GB2059393B (en) 1983-09-14
JPS6228621Y2 (enrdf_load_stackoverflow) 1987-07-22

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